Lost foam casting sand cooling device

Abstract

The utility model provides an evanescent mode casting sand cooling device which comprises a falling guide plate, a cooling assembly is arranged in the falling guide plate, a dispersing assembly is arranged on the upper end face of the falling guide plate, a vibration motor drives the falling guide plate to vibrate, and then a proper amount of casting sand to be cooled is poured into a sand throwing hopper. The sand feeding hopper can guide casting sand downwards to fall on the left side of the upper end face of the falling guide plate, at the moment, the casting sand can slide towards the right side under vibration force, in the process, the supporting plate can block the casting sand located at the high position, the multiple dispersion pointed heads can disperse the passing casting sand, and meanwhile, the casting sand can be dispersed through the dispersion pointed heads; a circulating water pump works to pump cooling water in a water storage tank into a water passing cavity through a water outlet hose and a water inlet connecting pipe, so that the cooling water cools casting sand sliding towards the right side through a falling guide plate; and cooling water absorbing heat enters the tubular heat exchanger through the water outlet connecting elbow and the water inlet hose for cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam casting sand cooling, in particular to a lost foam casting sand cooling device. Background Art

[0002] Lost foam casting (also known as full-mold casting) is a novel casting method that involves bonding wax or foam patterns similar in size and shape to the casting into a pattern cluster. After being coated with a refractory coating and dried, the cluster is embedded in dry quartz sand and vibrated to form the pattern. Poured under negative pressure, the pattern vaporizes, allowing liquid metal to occupy the pattern's position. After solidification and cooling, the casting is formed. Because foundry sand is recycled, it maintains a certain temperature after use. To prevent the high temperature of the sand from causing deformation of the foam pattern used in lost foam casting, the sand needs to be cooled with a cooling device after each use.

[0003] Publication No. "CN210254081U" provides a lost foam casting sand cooling device, which arranges the existing rotating drum in a trough body opened on both sides of the main body and is movably connected through a bearing, a hydraulic device is provided under the trough body, the top of the hydraulic device is fixedly connected with an arc-shaped top block, and the trough body is provided with a bearing slide, and a gear slide is also provided on the left trough body, so that the rotating drum can be lifted by the hydraulic device, and then the bearings and the first gear on the rotating drum can pass through the bearing slide and the gear slide and slide into the second trough body, so that the rotating drum can roll into the second trough body as a whole and then the inlet and outlet can be opened for unloading, and a motor is provided under the left trough body, and the output of the motor is fixedly connected with the second gear. The first gear is meshed with the second gear so that when the rotating drum is in the trough body, it can be driven by the motor to rotate, thereby cooling the casting sand therein in a water bath.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] First, the cooling device has complicated operation steps in the process of cooling the lost foam casting sand, which results in a long time for the casting sand to be cooled, thereby affecting the subsequent lost foam casting efficiency. Secondly, the cooling water inside the main box of the cooling device does not have a corresponding cooling structure to cool it, resulting in heat accumulation in the cooling water during use. At this time, the cooling effect of the cooling water will be greatly reduced, and the cooling effect needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a cooling device for lost foam casting sand to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A lost foam casting sand cooling device comprises a sand receiving box, a guide plate and a water storage tank, wherein the sand receiving box is placed on the right side of the guide plate, and the water storage tank is installed on the left side of the guide plate. A cooling component is provided inside the guide plate, and the cooling component is used to cool the guide plate so that the guide plate can cool the casting sand on the upper end surface. A dispersion component is provided on the upper end surface of the guide plate, and the dispersion component is used to disperse the casting sand on the upper end surface of the guide plate so that the casting sand can be cooled more efficiently.

[0009] Preferably, the cooling assembly includes a shell and tube heat exchanger, a water inlet hose, a water outlet hose, a circulating water pump, a water outlet connecting elbow, a water passage cavity and a water inlet connecting pipe. The upper end surface of the water storage tank is equipped with a shell and tube heat exchanger, the circulating water pump is equipped with a water passage cavity on the lower side of the right end surface of the water storage tank, the guide plate is provided with a water passage cavity inside, the right side of the lower end surface of the guide plate is fixedly connected with a water inlet connecting pipe, the water outlet hose is connected between the inlet connecting pipe inlet and the circulating water pump outlet, the upper side of the left end surface of the guide plate is fixedly connected with a water outlet connecting elbow, and the water inlet hose is connected between the outlet of the water outlet connecting elbow and the water inlet end of the shell and tube heat exchanger.

[0010] Preferably, the dispersion component includes a guide bucket, a blocking frame, a support plate, a dispersion tip, a sand throwing bucket and a vibration motor. The vibration motor is installed in the middle position of the lower end surface of the guide drop plate, the upper end surface of the guide drop plate is fixedly connected to the blocking frame, the left side of the upper end surface of the blocking frame is fixedly connected to the sand throwing bucket, the right end surface of the guide drop plate is fixedly connected to the guide bucket, the inner wall of the blocking frame is fixedly connected to a plurality of support plates, and the lower end of the support plate is fixedly connected to a plurality of dispersion tips.

[0011] Preferably, the front and rear ends of the guide plate are symmetrically fixedly connected with extension support plates, support columns are inserted into the extension support plates, support rings are fixedly connected to the upper side of the annular side of the support column, and a shock-absorbing spring is mounted on the upper side of the annular side of the support column.

[0012] Preferably, an anti-slip ring is sleeved on the upper side of the annular side surface of the support column, and the anti-slip ring is a detachable structure, and the support column and the support ring are an integrated structure.

[0013] Preferably, a filter residue mesh plate is placed inside the sand throwing hopper, and the filter residue mesh plate is a detachable structure, and the guide plate is higher on the left and lower on the right.

[0014] Preferably, a water supply valve is installed on the upper side of the left end surface of the water tank, a drain valve is installed on the lower side of the left end surface of the water tank, an observation window is provided on the upper side of the front end surface of the water tank, and movable casters with foot brakes are installed on the bottom of the sand receiving box.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. During the cooling process of lost foam casting sand, the circulating water pump is operated to pump the cooling water in the water tank into the water passage cavity through the water outlet hose and the water inlet connecting pipe, so that the cooling water can cool the casting sand sliding to the right through the guide plate. The cooling water that has absorbed heat will pass through the water outlet connecting elbow and the water inlet hose into the shell and tube heat exchanger for cooling, thereby ensuring the cooling effect of the cooling water. The cooled cooling water will flow back into the water tank for recycling, thereby reducing the use of cooling water.

[0017] 2. By driving the guide plate to vibrate with a vibration motor, the casting sand on the upper surface of the guide plate can slide to the right under the vibration force. During this process, the support plate can block the casting sand at a high position, and multiple dispersion tips can disperse the passing casting sand to prevent the casting sand from easily accumulating when the upper surface of the guide plate slides to the right, thereby improving the cooling efficiency of the cooling component on the casting sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a rear structural diagram of the dispersion component and the cooling component in the present invention;

[0020] Figure 3 It is a front cross-sectional view of the dispersion component and the cooling component in the present invention;

[0021] Figure 4 It is a structural diagram of the dispersed components in the present utility model;

[0022] Figure 5 This is a structural diagram of the water storage tank in the utility model;

[0023] Figure 6 This is a structural diagram of the support plate and the dispersion tip in the utility model.

[0024] In the figure: 1. Sand receiving box; 11. Movable castors with foot brakes; 2. Guide plate; 3. Dispersion assembly; 31. Guide bucket; 32. Blocking frame; 33. Support plate; 34. Dispersion tip; 35. Sand throwing hopper; 351. Filter screen; 36. Extension support plate; 37. Shock-absorbing spring; 38. Support ring; 39. Support column; 391. Anti-slip ring; 311. Vibration motor; 4. Water storage tank; 41. Water supply valve; 42. Drain valve; 43. Observation window; 5. Cooling assembly; 51. Shell and tube heat exchanger; 52. Water inlet hose; 53. Water outlet hose; 54. Circulating water pump; 55. Water outlet connecting elbow; 56. Water passage chamber; 57. Water inlet connecting pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 , the utility model provides a technical solution:

[0027] Example 1:

[0028] A lost foam casting sand cooling device includes a sand receiving box 1, a guide plate 2 and a water tank 4. The sand receiving box 1 is placed on the right side of the guide plate 2. The sand receiving box 1 is convenient for collecting the cooled casting sand. The bottom of the sand receiving box 1 is equipped with movable casters 11 with foot brakes. The movable casters 11 with foot brakes are convenient for staff to transfer the sand box 1. A water tank 4 is installed on the left side of the guide plate 2. The water tank 4 can store a certain amount of cooling water. The guide plate 2 is high on the left and low on the right. The guide plate 2 with high left and low right shape facilitates the casting sand sliding down the upper end surface to slide automatically to the right.

[0029] A cooling component 5 is provided inside the guide plate 2, and the cooling component 5 is used to cool the guide plate 2 so that the guide plate 2 can cool the casting sand at the upper end surface. A dispersion component 3 is provided on the upper end surface of the guide plate 2, and the dispersion component 3 is used to disperse the casting sand on the upper end surface of the guide plate 2 so that the casting sand can be cooled more efficiently.

[0030] The cooling assembly 5 includes a shell and tube heat exchanger 51, a water inlet hose 52, a water outlet hose 53, a circulating water pump 54, a water outlet connecting elbow 55, a water passage chamber 56 and a water inlet connecting pipe 57. The shell and tube heat exchanger 51 is installed on the upper end surface of the water storage tank 4. The cooling end of the shell and tube heat exchanger 51 is connected to the external cooling tower through a pipeline. The shell and tube heat exchanger 51 can cool the cooling water passing through it when working, so as to ensure that the cooling water circulates and cools the guide plate 2. Due to the internal structure of the shell and tube heat exchanger 51, the cooling water can be cooled by the cooling water. The detailed structure and working principle are relatively mature technologies in the existing technology, so they will not be described in detail here. A circulating water pump 54 is installed on the lower side of the right end surface of the water tank 4. The circulating water pump 54 is connected to the external control switch through a wire. When working, the circulating water pump 54 can pump the cooling water in the water tank 4 into the water flow cavity 56 through the water outlet hose 53 and the water inlet connecting pipe 57. A water flow cavity 56 is opened inside the guide plate 2. The water flow cavity 56 facilitates the cooling water to flow through the inside of the guide plate 2 to cool it.

[0031] A water inlet connecting pipe 57 is fixedly connected to the right side of the lower end surface of the guide plate 2. The water inlet connecting pipe 57 is connected to the water flow cavity 56. The water inlet connecting pipe 57 is connected to the guide plate 2 by welding. The water inlet connecting pipe 57 can guide the cooling water guided by the water outlet hose 53 into the water flow cavity 56. A water outlet hose 53 is connected between the inlet of the water inlet connecting pipe 57 and the outlet of the circulating water pump 54. The water outlet hose 53 facilitates the circulating water pump 54 to pump cooling water into the water inlet connecting pipe 57. The left and right ends of the annular side surface of the water outlet hose 53 are installed with a first fixed throat clamp. The first fixed throat clamp facilitates fixing the two ends of the water outlet hose 53. A water outlet connecting elbow 55 is fixedly connected to the upper side of the left end surface of the guide plate 2. The water outlet connecting elbow 55 is connected to the water flow cavity 56 and is connected to the guide plate 2 by welding. The water outlet connecting elbow 55 can guide the cooling water in the water flow cavity 56 into the water inlet hose 52.

[0032] A water inlet hose 52 is connected between the outlet of the water connecting elbow 55 and the water inlet end of the shell and tube heat exchanger 51. The water inlet hose 52 is convenient for introducing the cooling water after absorbing heat into the shell and tube heat exchanger 51. Second fixed throat clamps are installed on both ends of the annular side of the water inlet hose 52. The second fixed throat clamps are convenient for fixing the two ends of the water inlet hose 52. A water supply valve 41 is installed on the upper side of the left end surface of the water tank 4. The inlet of the water supply valve 41 is connected to the external tap water source through a pipe. When the water supply valve 41 is opened, cooling water can be added to the water tank 4. A drain valve 42 is installed on the lower side of the left end surface of the water tank 4. The outlet of the drain valve 42 is connected to the external sewer pipe through a pipe. When the drain valve is opened, the cooling water in the water tank 4 can be discharged for replacement. An observation window 43 is provided on the upper side of the front end surface of the water tank 4. The observation window 43 facilitates the staff to observe the internal situation of the water tank 4 in real time.

[0033] Example 2:

[0034] On the basis of Example 1, in this embodiment, the vibration motor 311 drives the guide plate 2 to vibrate, so that the casting sand on the upper end surface of the guide plate 2 can slide to the right under the vibration force. During this process, the support plate 33 can block the casting sand at a high position, and the multiple dispersion tips 34 can disperse the passing casting sand to prevent the casting sand from easily accumulating during the sliding of the upper end surface of the guide plate 2 to the right, thereby improving the cooling efficiency of the cooling component 5 on the casting sand.

[0035] The dispersion component 3 includes a guide drop bucket 31, a blocking frame 32, a support plate 33, a dispersion tip 34, a sand throwing bucket 35 and a vibration motor 311. A vibration motor 311 is installed in the middle position of the lower end surface of the guide drop plate 2. The vibration motor 311 is connected to an external control switch through a wire. The vibration motor 311 can drive the guide drop plate 2 to vibrate when working, so that the guide drop plate 2 with vibration and left high and right low drives the casting sand at the upper end surface to slide automatically to the right. The upper end surface of the guide drop plate 2 is fixedly connected to the blocking frame 32. The blocking frame 32 prevents the casting sand at the upper end surface of the guide drop plate 2 from spilling forward and backward or to the left. The left side of the upper end surface of the blocking frame 32 is fixedly connected to the sand throwing bucket 35. The sand throwing bucket 35 is connected to the blocking frame 3 2 are connected by welding. The sand throwing hopper 35 facilitates the staff to throw sand toward the upper end surface of the guide plate 2. The right end surface of the guide plate 2 is fixedly connected to the guide bucket 31. The guide bucket 31 can guide the casting sand guided down by the guide plate 2 into the sand receiving box 1. The inner wall of the blocking frame 32 is fixedly connected to a plurality of support plates 33. The plurality of support plates 33 can block the casting sand at a high position on the upper end surface of the guide plate 2. The lower end of the support plate 33 is fixedly connected to a plurality of dispersion spikes 34. The plurality of dispersion spikes 34 can disperse the passing casting sand to prevent the casting sand from easily accumulating when the upper end surface of the guide plate 2 slides to the right, so that the guide plate 2 can evenly and quickly cool the sliding casting sand.

[0036] The front and rear ends of the guide plate 2 are symmetrically fixedly connected with an extension support plate 36. The extension support plate 36 is connected to the guide plate 2 by welding. The extension support plate 36 facilitates the vibration-damping spring 37 to support the guide plate 2. A support column 39 is inserted into the extension support plate 36. The bottom of the support column 39 is fixed to the ground by an external expansion bolt. The support column 39 can not only limit the extension support plate 36, but also support the vibration-damping spring 37. A support ring 38 is fixedly connected to the upper side of the annular side of the support column 39. The support column 39 and the support ring 38 are an integrated structure. The support ring 38 can support the vibration-damping spring 37. The upper side of the annular side of the support column 39 is covered with The vibration-damping spring 37 has a good vibration isolation effect, thereby reducing the vibration noise of the guide plate 2. The upper side of the annular side of the support column 39 is provided with an anti-slip ring 391, and the anti-slip ring 391 is a detachable structure. The anti-slip ring 391 can block and limit the upward movement range of the extension support plate 36 to prevent the extension support plate 36 from slipping upward during use. A filter residue mesh plate 351 is placed inside the sand hopper 35, and the filter residue mesh plate 351 is a detachable structure. The mesh diameter of the filter residue mesh plate 351 is slightly larger than the diameter of the casting sand particles. The filter residue mesh plate 351 can block large particles of impurities in the passing casting sand, thereby ensuring the purity of the casting sand.

[0037] Working principle: During the cooling process of lost foam casting sand, the staff first starts the vibration motor 311, so that the vibration motor 311 drives the guide plate 2 to vibrate. At this time, the vibration damping spring 37 will isolate most of the vibration transmitted by the extension support plate 36, thereby reducing the noise generated by the vibration of the guide plate 2, and the support column 39 will limit the extension support plate 36 to prevent the extension support plate 36 from deflecting during the up and down displacement. At the same time, the anti-disengagement ring 391 can block and limit the upward movement range of the extension support plate 36, thereby ensuring the vibration stability of the guide plate 2. Then, an appropriate amount of casting sand to be cooled can be poured into the sand feeding hopper 35. During this process, the filter screen 351 can block large particles of impurities in the passing casting sand, and the filtered casting sand will fall down to the left side of the upper end surface of the guide plate 2 and slide to the right under the vibration force. In the process of the casting sand sliding to the right, multiple supports The support plate 33 can block the foundry sand at a high position, and the multiple dispersion spikes 34 can disperse the passing foundry sand to prevent the foundry sand from easily piling up when the upper end surface of the guide plate 2 slides to the right; at the same time, the staff starts the circulating water pump 54, and makes the circulating water pump 54 work to pump the cooling water in the water storage tank 4 into the water passage chamber 56 through the water outlet hose 53 and the water inlet connecting pipe 57, so that the cooling water can cool the foundry sand sliding to the right through the guide plate 2, and the cooling water that absorbs heat will enter the shell and tube heat exchanger 51 through the water outlet connecting elbow 55 and the water inlet hose 52, so that the shell and tube heat exchanger 51 can cool the cooling water, and the cooled cooling water will flow into the water storage tank 4 again for recycling, and finally the guide bucket 31 will guide the cooled and sliding foundry sand into the sand receiving box 1, so that the staff can transfer the foundry sand in a centralized manner.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lost foam casting sand cooling device, comprising a sand receiving box (1), a guide plate (2) and a water storage tank (4), characterized in that: A sand receiving box (1) is placed on the right side of the guide plate (2), a water storage tank (4) is installed on the left side of the guide plate (2), a cooling component (5) is provided inside the guide plate (2), and the cooling component (5) is used to cool the guide plate (2), so that the guide plate (2) can cool the casting sand on the upper end surface, and a dispersion component (3) is provided on the upper end surface of the guide plate (2), and the dispersion component (3) is used to disperse the casting sand on the upper end surface of the guide plate (2), so that the casting sand can be cooled more efficiently.

2. The lost foam casting sand cooling device according to claim 1, characterized in that: The cooling assembly (5) comprises a shell-and-tube heat exchanger (51), a water inlet hose (52), a water outlet hose (53), a circulating water pump (54), a water outlet connecting elbow (55), a water passage cavity (56) and a water inlet connecting pipe (57). The upper end surface of the water storage tank (4) is provided with the shell-and-tube heat exchanger (51), the lower side of the right end surface of the water storage tank (4) is provided with a water passage cavity (56), the interior of the guide plate (2) is provided with a water inlet connecting pipe (57), the right side of the lower end surface of the guide plate (2) is fixedly connected with the water inlet connecting pipe (57), the water outlet hose (53) is connected between the inlet of the water inlet connecting pipe (57) and the outlet of the circulating water pump (54), the upper side of the left end surface of the guide plate (2) is fixedly connected with the water outlet connecting elbow (55), and the water inlet hose (52) is connected between the outlet of the water outlet connecting elbow (55) and the water inlet end of the shell-and-tube heat exchanger (51).

3. The lost foam casting sand cooling device according to claim 1, characterized in that: The dispersion assembly (3) comprises a guide drop bucket (31), a blocking frame (32), a support plate (33), a dispersion tip (34), a sand throwing bucket (35) and a vibration motor (311); the vibration motor (311) is installed at the middle position of the lower end surface of the guide drop plate (2); the upper end surface of the guide drop plate (2) is fixedly connected to the blocking frame (32); the left side of the upper end surface of the blocking frame (32) is fixedly connected to the sand throwing bucket (35); the right end surface of the guide drop plate (2) is fixedly connected to the guide drop bucket (31); the inner wall of the blocking frame (32) is fixedly connected to a plurality of support plates (33); and the lower end of the support plate (33) is fixedly connected to a plurality of dispersion tips (34).

4. The lost foam casting sand cooling device according to claim 1, characterized in that: The front and rear ends of the guide plate (2) are symmetrically and fixedly connected to an extension support plate (36), a support column (39) is inserted into the extension support plate (36), a support ring (38) is fixedly connected to the upper side of the annular side of the support column (39), and a vibration damping spring (37) is sleeved on the upper side of the annular side of the support column (39).

5. The lost foam casting sand cooling device according to claim 4, characterized in that: An anti-slip ring (391) is sleeved on the upper side of the annular side surface of the support column (39), and the anti-slip ring (391) is a detachable structure. The support column (39) and the support ring (38) are an integrated structure.

6. The lost foam casting sand cooling device according to claim 3, characterized in that: A filter residue screen plate (351) is placed inside the sand throwing hopper (35), and the filter residue screen plate (351) is a detachable structure. The guide plate (2) is higher on the left and lower on the right.

7. The lost foam casting sand cooling device according to claim 1, characterized in that: A water supply valve (41) is installed on the upper side of the left end surface of the water storage tank (4), a drain valve (42) is installed on the lower side of the left end surface of the water storage tank (4), an observation window (43) is provided on the upper side of the front end surface of the water storage tank (4), and a movable caster (11) with a foot brake is installed at the bottom of the sand receiving box (1).

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